Improvement in grain-drills



W. H. NAUMAN.

GRAIN DRILL. No.181,588. Patented Aug.29,1876.

IINITED STATES PATENT OFFICE.

WILLIAM H. NAUMAN, OF DAYTON, OHIO.

IMPROVEMENT IN GRAIN-DRILLS.

Specification forming part of Letters Patent No. 181,588, dated August 29, 1876 application filed July 10, 1876.

To all whom it may concern Be it known that I, WILLIAM H. NAUMAN, of Dayton, Montgomery county, Ohio, have invented certain new and useful Improvements in Grain-Drills, of which the following is a specification:

This invention relates to that class of graindrills which are provided with two rocking bars capable of being locked in either one of two positions, for the purpose of maintaining the hoes of the implement in rank or else in a zigzag position with reference to one an other and the first part of my improvement comprises a novel construction of end bearingplates for the aforesaid rocking-bars. These bearing-plates are constructed in such a manner as to allow the rocking-bars to vibrate in the main frame of the implement, and at same time to impart asimultaneous but opposite vibration from one bar to the other.

The second part of my invention comprises a novel form of clip, wherewith the forward ends of the drag-bars are coupled to the rocking bars, this clip being constructed in such a manner as to be secured with a single bolt, which latter serves as a pivot for the drag-bar, as hereinafter more fully described.

In the annexed drawings, forming part of this specification, Figure l is a half plan of a grain-drill embodying my improvements, the rocking-bars being set so as to dispose the two rows of hoes in a zigzag position with reference to each other. Fig. 2 is a vertical section of the implement. Fig. 3 is another vertical section, but showing the rocking-bars shifted to bring the hoes in rank. Figs. 4. and 5 are elevations of the end plates of the rocking bars, the positions of the plates corresponding with the disposition of said bars in Figs. 2 and 3 respectively. Fig. 6 is a plan showing one of the drag-bar clips attached to the rocking-bar; and Fig. 7 is a vertical section of the same in the plane of the retaining bolt or staple.

The main frame A a a, axle B, and groundwheels I; may be of any approved construction and arrangement, as they constitute no part of my invention. Disposed transversely of the implement, and near the front end of the same, are two horizontal and parallel rocking bars or beams, O O, which are journaled in the sides A of the main frame in the following manner: Each bar is secured at its ends by means of screws or bolts 0 and c to fiat plates D D, of which one of the plates has a prolongation, d. Projecting outwardly from plates D and D are lugs or stumps E E, which are capable of entering the sides A of the frame far enough... to afl'ord secure journalbearings for the rocking-bars O G to oscillate on. Furthermore, these plates are provided with outwardly-projecting wrists e e, which are somewhat shorter than the studs E E, as said wrists are not to come in contact with the frame of the machine, but they are intended as points of attachment for links or connecting-rods F, wherewith the two rocking bars 0 and O are coupled together so as to vibrate in unison, but in opposite directions. By referring to Figs. 4. and 5 it will be observed that wrist e is situated above journal E and near the end prolongation 01, while wrist e is located below the other journal E, which arrangement produces the opposite swinging of the bars 0 C, as previously alluded to.

As a matter of economy of construction, I prefer to cast the journals E E and Wrists e c with their respective end plates D D, but said journals and wrists may be separate pieces, and be secured to the plates in any convenient manner. The bars 0 and 0 may be rocked by a lever projecting vertically from either one of them; but I prefer to make use of the following devices:

The pole or tongue G is bolted securely to the cross-beams a a of the frame, and thereby serves as a support for the standard H, which latter is pierced with two apertures, I and I,-

thatare concentric with pivot h of said standard. This pivot It is the fulcrum of lever J, whose lower end carries a link, j, that is coupled to either one of the bars 0 or C, but preferably to the latter one. Pivoted to this lever at k is a short lever, K, whose lower end carries a pin, L, that is adapted to with eitherone ofthe apertures I or I ofstandard H. dis a spring, whose stress maintains the pin Lin either of the aforesaid apertures. (See diagram 3.) MM are the customary forked drag-bars for the hoes N N, of which latter as many may be used as is desired. The manner engage of attaching the forward ends of these dragbars to their respective rocking bars is as follows: 0 represents a clip, which is preferably made of a single piece of cast metal, although it may be made in two parts, as indicated by dotted lines in the plan at the right of Fig. 6. Passing diametrically through this clip, from front to rear, is a channel, 1?,ot' sufficient capacity to receive the head of the drag-bar M. This channel is crossed with a groove, R, at right angles to said channel. The groove R is not quite so deep as the channel, and is continued up the sides of the clip, as seen at 1' r in Fig. 7. These said a" 4" are designed to receive the staple-shanks S S, whose bend passes through an eye in the head of the dragbar M of these shanks S and S. The one, S, is comparatively short, being adapted to enter the rocking bar 0 only about half an inch or so, while the other shank, S, passes completely through said bar, and is'secured with a nut, S. By this arrangement the staple not only prevents any lateral or longitudinal shifting of the clips 0, butthe bend of said staple serves as a secure bearing forthe dragbar. If preferred, the shank S may pass entirely through the barG but such a construction is not considered necessary, as it would weaken said bar without adding to the se curity of the clip 0. The linkj that connects lever J with rocking bar 0 is attached to said bar with one of these clips, as seen more clearly in Fig. 2.

a When it is desirable to arrange the hoes N N in azigzag position with reference to each other the driver grasps lever J, and by a slight compressionupon lever K he withdraws pin L from aperture 1, and then forces the upper end of lever J forward. This act rocks the bars 0 and G to the positions shown in Figs.

2 and 4:, and consequently separates the hoes as far as possible. Having thus thrown the lever he quits his grasp thereof, and the stress of spring I at once forces pin L into aperture I of standard H, and thereby locks bars 0 and O securely'in position.

To throw the hoes into rank the abovedescribed operations are reversed, and the pin L engaged with aperture I, which act brings the bars 0 and O to the position shown in Figs. 3 and 5, and this engagement of said pin, with rear aperture of standard H secures the hoes in their new position. As these acts can be performed While the driver occupies his seat it will not be necessary to stop the team before shifting the hoes.

As Figs. 4 and 5 showthe opposite end plates to what-are shown in Fig.1, it will'be apparent that the devices D d, E e, D E e, and=F are duplicated at the extremities of rocking bars (3' and C.

I claim as my invention- 1'. In combination with the rocking bars 0 O, the end plates D d, E e, D E e,and connecting-rod F, whereby said bars 0 G are caused to oscillate simultaneously, but in opposite directions, substantially as herein described, and for the purpose forth.

2. The clip 0, made either in one or more pieces, and provided with a channel, 1?, and groove R1 r,w-h-ich latter receives the staple S S that couples said clips to the rocking bar 0, and also serves as a bearing for the perforated head of drag-bar- M, or itsequ-ivalent device, substantially as herein described and set forth.

WM. H. NAUMAN.

Witnesses:

WEBSTER W. SHUEY, ALBERT KERN. 

